AT363490B - Verfahren zur herstellung von harnstoff von hoher mechanischer festigkeit - Google Patents
Verfahren zur herstellung von harnstoff von hoher mechanischer festigkeitInfo
- Publication number
- AT363490B AT363490B AT0676778A AT676778A AT363490B AT 363490 B AT363490 B AT 363490B AT 0676778 A AT0676778 A AT 0676778A AT 676778 A AT676778 A AT 676778A AT 363490 B AT363490 B AT 363490B
- Authority
- AT
- Austria
- Prior art keywords
- mechanical strength
- high mechanical
- producing urea
- urea
- producing
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C273/00—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups
- C07C273/02—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of urea, its salts, complexes or addition compounds
- C07C273/14—Separation; Purification; Stabilisation; Use of additives
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C9/00—Fertilisers containing urea or urea compounds
- C05C9/005—Post-treatment
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Phenolic Resins Or Amino Resins (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Catalysts (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NO773201A NO148744C (no) | 1977-09-19 | 1977-09-19 | Fremgangsmaate til fremstilling av urea med hoey mekanisk styrke |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| ATA676778A ATA676778A (de) | 1981-01-15 |
| AT363490B true AT363490B (de) | 1981-08-10 |
Family
ID=19883724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT0676778A AT363490B (de) | 1977-09-19 | 1978-09-19 | Verfahren zur herstellung von harnstoff von hoher mechanischer festigkeit |
Country Status (18)
| Country | Link |
|---|---|
| US (1) | US4204053A (no) |
| AT (1) | AT363490B (no) |
| CA (1) | CA1092155A (no) |
| DD (1) | DD138540A5 (no) |
| DE (1) | DE2836511A1 (no) |
| EG (1) | EG13487A (no) |
| ES (1) | ES473443A1 (no) |
| FR (1) | FR2403331A1 (no) |
| GB (1) | GB2004546B (no) |
| HU (1) | HU175807B (no) |
| IE (1) | IE47349B1 (no) |
| IT (1) | IT1098847B (no) |
| NL (1) | NL7808601A (no) |
| NO (1) | NO148744C (no) |
| PL (1) | PL119281B1 (no) |
| RO (1) | RO75749A (no) |
| SU (1) | SU948289A3 (no) |
| YU (1) | YU201478A (no) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3667418B2 (ja) * | 1996-02-01 | 2005-07-06 | 東洋エンジニアリング株式会社 | 粒状尿素の製造方法 |
| US6217630B1 (en) | 1999-05-03 | 2001-04-17 | Cargill, Incorporated | Conditioned fertilizer product, method for conditioning fertilizer, and method for using conditioned fertilizer product |
| DE19923525A1 (de) * | 1999-05-21 | 2000-11-23 | Saar En Gmbh | Verfahren zur Herstellung eines Harnstoff-Formaldehyd-Düngers |
| GB2394956B (en) * | 2002-10-18 | 2004-10-27 | Basic Solutions Ltd | A urea based granule blend for ice-melting and reducing granule caking |
| BRPI0417564A (pt) * | 2003-12-18 | 2007-03-27 | Georgia Pacific Resins | fertilizante nitrogenado granular com liberação prolongada |
| US20050163911A1 (en) * | 2004-01-28 | 2005-07-28 | Cargill, Inc. | Animal feed product containing crushed urea |
| US7862642B2 (en) * | 2006-12-14 | 2011-01-04 | Georgia-Pacific Chemicals Llc | Extended-release urea-based granular fertilizer |
| DE102006061475A1 (de) | 2006-12-23 | 2008-06-26 | Evonik Degussa Gmbh | Verfahren zur kontinuierlichen Herstellung von (cyclo)aliphatischen Diisocyanaten |
| DE102014108703A1 (de) | 2014-06-20 | 2015-12-24 | Thyssenkrupp Ag | Harnstoffzusammensetzung und Verfahren zu ihrer Herstellung |
| CN114685191A (zh) * | 2022-06-02 | 2022-07-01 | 中北大学 | 脲甲醛缓释肥高温非均相缩聚精简制备工艺及其施用方法 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1916368A1 (de) * | 1969-03-29 | 1970-10-01 | Veba Chemie Nord Gmbh | Langsam wirkende Duengemittel |
| JPS5330689B1 (no) * | 1970-03-16 | 1978-08-29 |
-
1977
- 1977-09-19 NO NO773201A patent/NO148744C/no unknown
-
1978
- 1978-08-18 NL NL7808601A patent/NL7808601A/xx not_active Application Discontinuation
- 1978-08-21 DE DE19782836511 patent/DE2836511A1/de not_active Withdrawn
- 1978-08-23 YU YU02014/78A patent/YU201478A/xx unknown
- 1978-09-06 FR FR7825640A patent/FR2403331A1/fr active Granted
- 1978-09-06 RO RO7895125A patent/RO75749A/ro unknown
- 1978-09-08 GB GB7836133A patent/GB2004546B/en not_active Expired
- 1978-09-13 US US05/942,498 patent/US4204053A/en not_active Expired - Lifetime
- 1978-09-13 IE IE1848/78A patent/IE47349B1/en unknown
- 1978-09-14 DD DD78207825A patent/DD138540A5/xx unknown
- 1978-09-15 IT IT27723/78A patent/IT1098847B/it active
- 1978-09-16 PL PL1978209631A patent/PL119281B1/pl unknown
- 1978-09-18 EG EG566/78A patent/EG13487A/xx active
- 1978-09-18 CA CA311,506A patent/CA1092155A/en not_active Expired
- 1978-09-18 ES ES473443A patent/ES473443A1/es not_active Expired
- 1978-09-19 SU SU782663640A patent/SU948289A3/ru active
- 1978-09-19 AT AT0676778A patent/AT363490B/de not_active IP Right Cessation
- 1978-09-19 HU HU78NO229A patent/HU175807B/hu unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR2403331B1 (no) | 1982-05-28 |
| GB2004546B (en) | 1982-04-15 |
| IE47349B1 (en) | 1984-02-22 |
| NO773201L (no) | 1979-03-20 |
| US4204053A (en) | 1980-05-20 |
| IE781848L (en) | 1979-03-19 |
| IT1098847B (it) | 1985-09-18 |
| RO75749A (ro) | 1981-02-28 |
| IT7827723A0 (it) | 1978-09-15 |
| HU175807B (hu) | 1980-10-28 |
| FR2403331A1 (fr) | 1979-04-13 |
| NL7808601A (nl) | 1979-03-21 |
| CA1092155A (en) | 1980-12-23 |
| ATA676778A (de) | 1981-01-15 |
| YU201478A (en) | 1983-02-28 |
| DE2836511A1 (de) | 1979-03-29 |
| SU948289A3 (ru) | 1982-07-30 |
| GB2004546A (en) | 1979-04-04 |
| ES473443A1 (es) | 1979-04-01 |
| NO148744B (no) | 1983-08-29 |
| EG13487A (en) | 1981-06-30 |
| NO148744C (no) | 1983-12-07 |
| DD138540A5 (de) | 1979-11-07 |
| PL119281B1 (en) | 1981-12-31 |
| PL209631A1 (pl) | 1979-07-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ELJ | Ceased due to non-payment of the annual fee |